/* =====================================================
   ISEAZY REPORTS — Design System
   "The Vibrant Academic"
   ===================================================== */

/* ── Reset ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--surface);
  color: var(--on-surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* ── Design Tokens ──────────────────────────────────── */
:root {
  /* Brand */
  --primary:            #5B328C;
  --primary-dark:       #431774;
  --secondary:          #FF0055;
  --on-primary:         #ffffff;

  /* Surfaces */
  --surface:                  #fff7ff;
  --surface-container-lowest: #ffffff;
  --surface-container-low:    #f9f1fa;
  --surface-container:        #f3ebf4;
  --surface-container-high:   #ece5ed;

  /* Text */
  --on-surface:         #1e1a20;
  --on-surface-variant: #4a4550;
  --outline-variant:    rgba(91, 50, 140, 0.12);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #431774 0%, #5B328C 100%);
  --gradient-accent:  linear-gradient(135deg, #5B328C 0%, #FF0055 100%);
  --gradient-subtle:  linear-gradient(135deg, rgba(67,23,116,0.06) 0%, rgba(255,0,85,0.04) 100%);

  /* Shadows */
  --shadow-ambient:  0 12px 32px -8px rgba(91, 50, 140, 0.12);
  --shadow-elevated: 0 24px 64px -16px rgba(91, 50, 140, 0.18);
  --shadow-hover:    0 32px 80px -20px rgba(91, 50, 140, 0.24);

  /* Radii */
  --radius-sm:   0.5rem;
  --radius-md:   1rem;
  --radius-lg:   2rem;
  --radius-full: 9999px;

  /* Spacing */
  --space-4:  1rem;
  --space-6:  2rem;
  --space-8:  3rem;
  --space-10: 4rem;
  --space-16: 6rem;
}

/* ── Typography ─────────────────────────────────────── */
.display-lg {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--on-primary);
}
.headline-md {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--on-surface);
}
.title-lg {
  font-family: 'Inter', sans-serif;
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--on-surface);
}
.body-lg {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
}
.label-md {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.muted  { color: var(--on-surface-variant); }
.highlight {
  color: var(--secondary);
  font-style: italic;
}

/* ── Layout ─────────────────────────────────────────── */
.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Navigation ─────────────────────────────────────── */
.nav {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 200;
  background: rgba(255, 247, 255, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--outline-variant);
}
.nav-inner {
  display: flex;
  align-items: center;
  height: 58px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}

/* ── Hero ───────────────────────────────────────────── */
.hero {
  padding: 116px 0 96px;
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  width: 700px;
  height: 700px;
  top: -280px;
  right: -120px;
  background: radial-gradient(circle, rgba(255,0,85,0.18) 0%, transparent 65%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; }

.eyebrow {
  display: inline-block;
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 1.125rem;
}
.hero-sub {
  font-family: 'Inter', sans-serif;
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 1.25rem;
  max-width: 500px;
  line-height: 1.65;
}

/* ── Main / Overlap ─────────────────────────────────── */
.main {
  padding-bottom: var(--space-16);
}
.main .container {
  margin-top: -56px;
  position: relative;
  z-index: 10;
}

/* ── Panel ──────────────────────────────────────────── */
.panel {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-elevated);
  padding: 2.75rem 2.5rem;
  overflow: hidden;
}

/* ── Form Blocks ─────────────────────────────────────── */
.form-block {
  padding: 2rem 0;
  border-bottom: 1px solid var(--outline-variant);
}
.form-block:first-child { padding-top: 0; }
.form-block.no-border   { border-bottom: none; }

.step-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.step-header .headline-md { margin-bottom: 0.2rem; }

.step-badge {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: white;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.8125rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 3px;
  box-shadow: 0 4px 12px -2px rgba(67, 23, 116, 0.35);
}

/* ── Report Type Cards ───────────────────────────────── */
.report-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.875rem;
}
.report-card {
  background: var(--surface-container-low);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  padding: 1.25rem 1.125rem;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  text-align: left;
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s, transform 0.15s;
  position: relative;
}
.report-card:hover {
  background: var(--surface-container);
  box-shadow: var(--shadow-ambient);
  transform: translateY(-2px);
}
.report-card:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.report-card.selected {
  background: var(--surface-container-lowest);
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary), var(--shadow-ambient);
}
.report-card.selected::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: calc(var(--radius-md) - 2px);
  background: var(--gradient-subtle);
  pointer-events: none;
}

.report-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.report-icon--offline { background: rgba(255,107,53,0.1); color: #FF6B35; }
.report-icon--online  { background: rgba(46,125,50,0.1);  color: #2E7D32; }

.report-card-body { flex: 1; min-width: 0; }
.report-card-body .title-lg { margin-bottom: 0.2rem; }

.chips-row {
  display: flex;
  gap: 0.375rem;
  margin-top: 0.625rem;
  flex-wrap: wrap;
}

.report-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1.5px solid var(--outline-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: transparent;
  transition: all 0.2s;
  margin-top: 3px;
}
.report-card.selected .report-check {
  background: var(--gradient-primary);
  border-color: transparent;
  color: white;
  box-shadow: 0 4px 10px -2px rgba(67,23,116,0.4);
}

/* ── Chips ──────────────────────────────────────────── */
.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  background: var(--surface-container);
  border-radius: var(--radius-full);
  font-family: 'Inter', sans-serif;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--primary);
  letter-spacing: 0.01em;
}

/* ── Input ──────────────────────────────────────────── */
.input-field {
  width: 100%;
  padding: 0.875rem 1.125rem;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  background: var(--surface-container-high);
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  color: var(--on-surface);
  outline: none;
  transition: background 0.18s, border-color 0.18s, box-shadow 0.18s;
}
.input-field::placeholder { color: var(--on-surface-variant); opacity: 0.55; }
.input-field:focus {
  background: var(--surface-container-lowest);
  border-color: rgba(91, 50, 140, 0.35);
  box-shadow: 0 0 0 4px rgba(91, 50, 140, 0.08);
}

/* ── Drop Zone ───────────────────────────────────────── */
.drop-zone {
  background: var(--surface-container-low);
  border: 2px dashed rgba(91, 50, 140, 0.2);
  border-radius: var(--radius-lg);
  padding: 2.75rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}
.drop-zone:hover,
.drop-zone.drag-over {
  background: var(--surface-container);
  border-color: var(--primary);
  transform: scale(1.008);
}
.drop-zone:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.drop-icon { margin-bottom: 0.375rem; }

/* ── File List ───────────────────────────────────────── */
.file-list {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.file-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--surface-container-low);
  border-radius: var(--radius-sm);
  animation: slide-in 0.2s ease;
}
.file-icon-badge {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: rgba(46,125,50,0.12);
  color: #2E7D32;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Inter', sans-serif;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}
.file-name {
  flex: 1;
  min-width: 0;
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--on-surface);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.file-sheets {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
  margin-top: 0.25rem;
}
.file-meta {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  color: var(--on-surface-variant);
  flex-shrink: 0;
}

/* ── Buttons ─────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: var(--gradient-primary);
  color: var(--on-primary);
  border: none;
  border-radius: var(--radius-full);
  font-family: 'Inter', sans-serif;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.18s, box-shadow 0.18s, filter 0.18s;
  box-shadow: var(--shadow-ambient);
  letter-spacing: 0.01em;
}
.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  filter: brightness(1.06);
}
.btn-primary:focus-visible { outline: 2px solid var(--secondary); outline-offset: 3px; }
.btn-primary:active:not(:disabled) { transform: translateY(0); }
.btn-primary:disabled {
  background: var(--surface-container-high);
  color: var(--on-surface-variant);
  box-shadow: none;
  cursor: not-allowed;
}
.btn-full { width: 100%; padding: 1rem 2rem; font-size: 1rem; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--secondary);
  border-radius: var(--radius-full);
  font-family: 'Inter', sans-serif;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.18s, transform 0.15s;
}
.btn-secondary:hover {
  background: var(--surface-container-low);
  transform: translateY(-1px);
}
.btn-secondary:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }

.btn-copy {
  flex-shrink: 0;
  padding: 0.4375rem 0.875rem;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.18s, transform 0.15s;
  white-space: nowrap;
}
.btn-copy:hover { filter: brightness(1.1); transform: translateY(-1px); }
.btn-copy.copied { background: linear-gradient(135deg, #1b5e20, #2E7D32); }

/* ── Form Footer ─────────────────────────────────────── */
.form-footer {
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.875rem;
}
.form-hint { color: var(--on-surface-variant); text-align: center; }

/* ── State Panels ─────────────────────────────────────── */
.state-panel {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 4rem 2.5rem;
}

/* ── Orbit / Loading ─────────────────────────────────── */
.orbit-wrap {
  position: relative;
  width: 96px;
  height: 96px;
  margin-bottom: 0.5rem;
}
.orbit-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 3px solid transparent;
  border-top-color: var(--primary);
  border-right-color: var(--secondary);
  animation: spin 1.6s ease-in-out infinite;
}
.orbit-ring--inner {
  inset: 12px;
  border-top-color: transparent;
  border-right-color: transparent;
  border-bottom-color: var(--primary);
  border-left-color: var(--secondary);
  animation-duration: 2.1s;
  animation-direction: reverse;
}
.orbit-glow {
  position: absolute;
  inset: 24px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(91,50,140,0.12) 0%, transparent 70%);
  animation: pulse-glow 2.2s ease-in-out infinite;
}
.orbit-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: pulse-opacity 2.2s ease-in-out infinite;
}

@keyframes spin {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
@keyframes pulse-glow {
  0%, 100% { transform: scale(0.85); opacity: 0.4; }
  50%       { transform: scale(1.1);  opacity: 1;   }
}
@keyframes pulse-opacity {
  0%, 100% { opacity: 0.55; }
  50%       { opacity: 1;    }
}

.progress-track {
  width: 100%;
  max-width: 300px;
  height: 3px;
  background: var(--surface-container);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-top: 0.25rem;
}
.progress-fill {
  height: 100%;
  background: var(--gradient-accent);
  border-radius: var(--radius-full);
  width: 0%;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Badges ─────────────────────────────────────────── */
.badge {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.25rem;
  animation: pop-in 0.45s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}
.badge--success {
  background: var(--gradient-primary);
  box-shadow: 0 12px 32px -8px rgba(67,23,116,0.4);
}
.badge--error {
  background: linear-gradient(135deg, #b71c1c, #e53935);
  box-shadow: 0 12px 32px -8px rgba(183,28,28,0.35);
}

@keyframes pop-in {
  0%   { transform: scale(0.4); opacity: 0; }
  100% { transform: scale(1);   opacity: 1; }
}

/* ── Link Row ────────────────────────────────────────── */
.link-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--surface-container-low);
  border-radius: var(--radius-md);
  padding: 0.875rem 1rem;
  width: 100%;
  max-width: 520px;
  overflow: hidden;
}
.link-text {
  flex: 1;
  font-family: 'Inter', sans-serif;
  font-size: 0.8125rem;
  color: var(--primary);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Action Row ──────────────────────────────────────── */
.action-row {
  display: flex;
  gap: 0.875rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 0.375rem;
}

/* ── Glass Panel ─────────────────────────────────────── */
.glass-panel {
  background: rgba(255, 247, 255, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* ── Animations ──────────────────────────────────────── */
@keyframes slide-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0);   }
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 640px) {
  .panel        { padding: 2rem 1.25rem; }
  .state-panel  { padding: 3rem 1.25rem; }
  .hero         { padding: 96px 0 76px; }
  .main .container { margin-top: -40px; }

  .report-grid  { grid-template-columns: 1fr; }

  .action-row   { flex-direction: column; width: 100%; }
  .action-row .btn-primary,
  .action-row .btn-secondary { width: 100%; }
}
@media (max-width: 480px) {
  .link-row { flex-direction: column; align-items: stretch; }
  .btn-copy { text-align: center; }
}